Does caliber size really matter?

This is a discussion on Does caliber size really matter? within the Defensive Ammunition & Ballistics forums, part of the Defensive Carry Discussions category; My main purpose for a weapon is for ccw. I carry a g36 .45. From what I have read recently most shootings are at close ...

Does caliber size really matter?

My main purpose for a weapon is for ccw. I carry a g36 .45. From what I have read recently most shootings are at close range and seems all ammo have had about the same results at those ranges. So that's where my question come in. Does size really matter if yor shooting someone from less than 6 feet away?